General video · Level B2 - Part 2
Hungry Venus flytraps
The Venus flytrap... Like the Sundew, it makes itself very attractive, oozing nectar across the brim of each leaf.
Level: B2 · 18 sentences
Transcript
- The Venus flytrap...
- Like the Sundew, it makes itself very attractive, oozing nectar across the brim of each leaf.
- But any visiting insect had better watch out for these six tiny hairs.
- This fly has to tread carefully
- If it strikes one hair...
- it can carry on feeding
- but a timer has been set.
- A second strike in less than 20 seconds and the fly is doomed
- ...
- An electrical impulse is triggered and the leaf snaps shut in just a fraction of a second
- The tips locked together like prison bars
- If the fly is very big or very small, it may just manage to escape.
- But most are trapped...
- and die.
- ...
- Ten days later the trap reopens.
- All that remains is a husk.
- The plant has finished its meal and resets itself for its next victim.